body {
  margin: 0;
  padding: 0;
  font-family: PingFang SC;
}

.container {
  background: #f0f7ff;
}

.header {
  width: 100%;
  height: 80px;
  position: fixed;
  top: 0;
  left: 0;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  box-sizing: border-box;
  padding-left: 30px;
  padding-right: 50px;
  z-index: 100;
}

.header .logo-box {
  transform: translate(0);
  z-index: 20;
}

.header .logo-box img {
  display: block;
}

.header-background {
  width: 100%;
  height: 100%;
  position: absolute;
  background: #0a253a;
  z-index: 2;
  left: 0;
  opacity: 0;
}

.main-mask {
  width: 100vw;
  height: 100vh;
  visibility: hidden;
  opacity: 0;
  background: rgba(255, 255, 255, 0.7);
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1;
  transition: 0.3s ease;
}

.top-pallet {
  width: 100%;
  height: auto;
  position: relative;
}

.top-background {
  width: 100%;
  height: 600px;
  box-sizing: border-box;
  padding-right: 20%;
  padding-top: 218px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: flex-end;
  position: relative;
  z-index: 88;
}

.top-background .title-cn {
  font-size: 46px;
  color: #fff;
  font-weight: bold;
}

.top-background .title-en {
  font-size: 20px;
  color: #fff;
  font-weight: bold;
  margin-bottom: 50px;
}

.top-background .text-content {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.7);
  max-width: 350px;
  text-align: end;
  line-height: 32px;
}

.top-background-bottom {
  width: 100%;
  max-width: 100%;
}

.top-background-bottom img {
  max-width: 100%;
  width: 100%;
}

.top-background-img {
  position: absolute;
  width: 100%;
  top: 0;
}

.top-background-img img {
  max-width: 100%;
  width: 100%;
}

.adv-pallet {
  box-sizing: border-box;
  padding-top: 100px;
  padding-bottom: 130px;
}

.adv-room {
  width: 1420px;
  box-sizing: border-box;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: flex-start;
  align-items: center;
  max-width: 100%;
}

.adv-item-box {
  min-width: 300px;
  box-sizing: border-box;
  padding: 20px;
  flex-grow: 1;
  max-width: 355px;
}

.adv-item {
  height: 160px;
  width: 100%;
  border: 1px solid #dfdfdf;
  background: #f0f7ff;
  border-radius: 5px;
  transition: 0.4s ease;
  box-sizing: border-box;
  padding: 30px;
}

.adv-item:hover {
  background: #f7fbff;
  box-shadow: 0px 30px 50px -15px rgba(0, 0, 0, 0.07);
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.adv-title-box {
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: center;
  margin-bottom: 22px;
}

.titile-text {
  font-size: 20px;
  font-weight: bold;
  color: #0a253a;
  letter-spacing: 0.15px;
}

.adv-title-icon {
  width: 24px;
  height: 24px;
  margin-right: 8px;
}

.adv-title-icon img {
  width: 100%;
  height: 100%;
  display: block;
}

.adv-content-text {
  font-size: 14px;
  font-weight: 500;
  color: #85929d;
  max-width: 100%;
  letter-spacing: 0.2px;
  line-height: 28px;
}

.step-pallet {
  width: 100%;
  box-sizing: border-box;
  margin: 0 auto;
  position: relative;
}

.step-title-text {
  margin-bottom: 80px;
}

.step-title-box {
  font-size: 36px;
  font-weight: bold;
  letter-spacing: 0.2px;
  display: flex;
  width: 1380px;
  margin: 0 auto;
}

.step-content-pallet {
  width: 1380px;
  margin: 0 auto;
  height: 280px;
  background: linear-gradient(to right, #48d9c0, #02b3b3);
  position: relative;
  z-index: 90;
  box-sizing: border-box;
  padding: 0 100px;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
  border-radius: 5px;
}

.step-item-box {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  transition: 0.3s ease;
}

.step-item-box:hover {
  opacity: 0.8;
}

.step-number-box {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: #fff;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 25px;
  font-weight: bold;
  color: #29c8ba;
  margin-bottom: 30px;
}

.step-item-title {
  font-size: 20px;
  font-weight: bold;
  color: #fff;
  margin-bottom: 10px;
}

.step-item-text {
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  opacity: 0.8;
  letter-spacing: 0.2px;
}

.arrow-too {
  width: 42px;
  height: 28px;
}

.arrow-too img {
  width: 100%;
  height: 100%;
}

.step-background {
  width: 100%;
  background: #fff;
  position: absolute;
  left: 0;
  bottom: 0;
}

.solution-pallet {
  width: 100%;
  box-sizing: border-box;
  padding-top: 150px;
  background: #fff;
}

.solution-title-box {
  font-size: 36px;
  font-weight: bold;
  letter-spacing: 0.2px;
  display: flex;
  width: 1380px;
  margin: 0 auto;
  margin-bottom: 70px;
}

.solution-item-pallet {
  width: 1420px;
  box-sizing: border-box;
  display: flex;
  flex-direction: row;
  justify-content: center;
  align-items: center;
  margin: 0 auto;
  flex-wrap: wrap;
}

.solution-item-box {
  box-sizing: border-box;
  padding: 20px;
}

.solution-item {
  width: 670px;
  height: 338px;
  overflow: hidden;
  border-radius: 5px;
  position: relative;
}

.solution-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.solution-mask {
  width: 100%;
  height: 100%;
  background: rgba(10, 37, 58, 0.5);
  position: absolute;
  top: 0;
  left: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  align-items: center;
  box-sizing: border-box;
  padding: 0 50px 50px 50px;
  transition: 0.3s ease;
}

.solution-item-title-box {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
  margin-bottom: 0;
  transition: 0.3s ease;
}

.solution-item-icon-box {
  width: 32px;
  height: 32px;
  margin-bottom: 15px;
}

.solution-item-icon-box img {
  width: 100%;
  height: 100%;
  display: block;
}

.solution-title-text {
  font-size: 20px;
  color: #fff;
  font-weight: 500;
  letter-spacing: 0.1px;
}

.solution-content {
  font-size: 15px;
  max-width: 100%;
  letter-spacing: 0.2px;
  font-weight: 400;
  line-height: 30px;
  color: #fff;
  height: 0;
  overflow: hidden;
  visibility: hidden;
  opacity: 0;
  transition: 0.3s ease;
}

.solution-mask:hover {
  background: rgba(10, 37, 58, 0.8);
}

.solution-mask:hover .solution-item-title-box {
  margin-bottom: 36px;
}

.solution-mask:hover .solution-content {
  overflow: visible;
  visibility: visible;
  opacity: 1;
}

.footer {
  width: 100%;
  box-sizing: border-box;
  padding-top: 150px;
  background: #fff;
}

.div-line {
  width: 1560px;
  height: 1px;
  margin: 0 auto;
  background: #e6e7eb;
  max-width: 100%;
}

.footer-pallet {
  width: 1380px;
  height: 106px;
  max-width: 80%;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: space-between;
}

.copyright {
  font-size: 13px;
  color: #808080;
  text-decoration: none;
  font-weight: 500;
}

.links-box {
  display: flex;
  flex-direction: row;
  justify-content: flex-start;
  align-items: center;
}

.links-box a {
  margin-left: 30px;
  font-size: 13px;
  text-decoration: none;
  color: #000;
  font-weight: 500;
  transition: 0.3s ease;
}

.links-box a:hover {
  color: #1cb7a2;
}

.links-box p {
  margin: 0;
  font-size: 13px;
  text-decoration: none;
  color: #000;
  font-weight: 500;
  margin-left: 30px;
}

.header-link-box {
  display: flex;
  flex-direction: row;
  justify-content: flex-end;
  align-items: center;
  position: relative;
  z-index: 21;

  font-size: 14px;
}

.header-link-box a {
  margin-left: 50px;
  text-decoration: none;
  color: #fff;
  font-weight: 400;
  letter-spacing: 0.3px;
  transition: 0.3s ease;
}

.header-link-box a:hover {
  color: #80fff9;
}

.top-nav-link {
  display: flex;
  flex-direction: row;
  justify-content: flex-end;
  align-items: center;
  text-decoration: none;
}

.web-link {
  color: #80fff9 !important;
  font-weight: 300;
}

.top-nav-link:hover .link-arrow {
  transform: translateX(10px);
}

.top-nav-link .link-arrow {
  transition: 0.3s ease;
  margin-left: 10px;
}

.switch {
  display: none;
  width: 40px;
  height: 40px;
  background: #29c8ba;
  transform: translate(0);
  z-index: 80;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

.switch-line {
  width: 22px;
  height: 3px;
  margin: 5px 0;
  background: #fff;
}

@media screen and (max-width: 1500px) {
  .adv-room {
    width: 710px;
  }

  .step-title-box {
    width: 670px;
  }

  .step-content-pallet {
    width: 1120px;
    padding: 0 50px;
    height: 250px;
  }

  .solution-title-box {
    width: 670px;
  }

  .solution-item-pallet {
    width: 710px;
  }
}

@media screen and (max-width: 1125px) {
  .step-content-pallet {
    width: 670px;
    padding: 50px;
    height: 600px;
    flex-direction: column;
    align-items: flex-start;
  }

  .step-item-box {
    flex-direction: row;
    align-items: center;
  }

  .step-item-title {
    margin-bottom: 0;
    margin: 0 20px;
  }

  .step-number-box {
    margin-bottom: 0;
  }

  .arrow-too {
    transform: rotate(90deg);
  }

  .top-background {
    padding-right: 15%;
  }

  .links-box p {
    margin-left: 0 15px;
  }
}

@media screen and (max-width: 1090px) {
  .footer-pallet {
    flex-direction: column;
    height: auto;
    box-sizing: border-box;
    padding-top: 30px;
    padding-bottom: 30px;
  }

  .copyright {
    margin-bottom: 20px;
  }

  .step-content-pallet {
    max-width: 100%;
  }

  .solution-item-box {
    max-width: 100%;
  }

  .top-background {
    justify-content: flex-start;
    align-items: center;
    padding-right: 0;
    padding-top: 160px;
    height: 420px;
  }

  .top-background-img {
    display: none;
  }
}

@media screen and (max-width: 768px) {
  .links-box {
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    font-size: 14px !important;
  }
  .adv-room {
    max-width: 100%;
  }

  .solution-item-pallet {
    max-width: 100%;
  }

  .solution-item {
    max-width: 100%;
    height: 370px;
  }

  .adv-item-box {
    max-width: 100%;
  }

  .step-title-box {
    max-width: 100%;
    padding-left: 20px;
    font-size: 28px;
    box-sizing: border-box;
    margin-bottom: 30px;
  }

  .solution-title-box {
    max-width: 100%;
    padding-left: 20px;
    font-size: 28px;
    box-sizing: border-box;
    margin-bottom: 30px;
  }

  .adv-pallet {
    padding-bottom: 60px;
    padding-top: 30px;
  }

  .links-box p {
    margin: 0 !important;
    margin-bottom: 20px !important;
  }

  .links-box a {
    margin: 0 !important;
    margin-bottom: 20px !important;
  }

  .footer-pallet {
    padding-left: 20px;
    width: 100%;
    max-width: 100%;
    align-items: flex-start;
  }

  .copyright {
    order: 9;
    margin-bottom: 0;
  }

  .footer {
    padding-top: 60px;
  }

  .step-item-title {
    flex-shrink: 0;
    font-size: 17px;
    margin: 0 10px;
  }

  .step-number-box {
    flex-shrink: 0;
    width: 30px;
    height: 30px;
  }

  .step-content-pallet {
    width: calc(100% - 40px);
    padding: 30px;
    height: 500px;
  }

  .solution-pallet {
    padding-top: 60px;
  }

  .step-title-text {
    margin-bottom: 20px;
  }

  .solution-content {
    height: auto;
    visibility: visible;
    opacity: 1;
  }

  .solution-item-title-box {
    margin-bottom: 30px !important;
  }

  .solution-mask {
    background: rgba(10, 37, 58, 0.8);
    padding: 0 30px 30px 30px;
  }

  .top-background .title-cn {
    font-size: 19px !important;
  }

  .top-background .title-en {
    font-size: 15px !important;
    font-weight: 300 !important;
    opacity: 0.6;
    margin-top: 10px !important;
    margin-bottom: 20px !important;
  }

  .top-background {
    align-items: flex-start;
    padding-left: 40px;
    padding-right: 40px;
    height: 300px;
    padding-top: 120px;
    background: #0a253a;
  }

  .top-background .text-content {
    font-size: 13px;
    text-align: left;
    line-height: 25px !important;
  }

  .top-background-bottom {
    transform: translateY(-2px);
  }

  .header-link-box {
    position: fixed;
    width: 100%;
    height: auto;
    background: #071826;
    top: 79px;
    left: 0;
    flex-direction: column;
    align-items: flex-start;
    padding-top: 20px;
    padding-bottom: 20px;
    visibility: hidden;
    opacity: 0;
    transition: 0.3s ease;
  }
  .header-link-box a {
    height: 50px;
    display: flex;
    align-items: center;
    width: 100%;
    max-width: 100%;
  }

  .top-nav-link {
    justify-content: flex-start;
  }

  .header {
    padding-right: 30px;
  }

  .switch {
    display: flex;
    background: rgba(128, 255, 249, 0);
  }

  .switch-a {
    display: flex;
    background: rgba(128, 255, 249, 1);
    width: 40px;
    height: 40px;
    background: #29c8ba;
    transform: translate(0);
    z-index: 80;
    flex-direction: column;
    justify-content: center;
    align-items: center;
  }
}
